For plus eggs just farm the highest level dungeon that has 1.5% drop bonus, usually the t5 dungeons are the best, I assume you must be low level so I don't think you made it that far.
Snow globe, I would hold on a bit longer and feed it after you busty Valk, or use it as cheap tank leader for dungeons you have trouble beating.
Snow globe, I would hold on a bit longer and feed it after you busty Valk, or use it as cheap tank leader for dungeons you have trouble beating.